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open access

ADHD Symptomology and Overweight Among College Men

Description: Attention deficit/hyperactivity disorder (ADHD) is a childhood disorder that often persists into adulthood. Among adults, ADHD is highly comorbid with addictive behaviors (e.g., substance abuse and dependence), and depressive disorders. Recently, an association between ADHD and obesity has been reported in the literature; emotional and binge eating may be “addictive behaviors” that contribute to weight gain in this population. The purpose of this study was to test competing models of the hypoth… more
Date: December 2011
Creator: Johnson, Leslee M.
Partner: UNT Libraries
open access

Arithmetic Computations and Memory Management Using a Binary Tree Encoding af Natural Numbers

Description: Two applications of a binary tree data type based on a simple pairing function (a bijection between natural numbers and pairs of natural numbers) are explored. First, the tree is used to encode natural numbers, and algorithms that perform basic arithmetic computations are presented along with formal proofs of their correctness. Second, using this "canonical" representation as a base type, algorithms for encoding and decoding additional isomorphic data types of other mathematical constructs (set… more
Date: December 2011
Creator: Haraburda, David
Partner: UNT Libraries
open access

Assessment of Transportation Emissions for Ferrous Scrap Exports from the United States: Activity-Based Maritime Emissions Model and Theoretical Inland Transportation Model.

Description: Industrial ecology is a field of study that encourages the use of closed-loop material cycles to achieve sustainability. Loop closing requires the movement of materials over space, and has long been practiced in the iron and steel industry. Iron and steel (ferrous) scrap generated in the U.S. is increasingly exported to countries in Asia, lengthening the transportation distance associated with closing the loop on the iron and steel life cycle. In order to understand the environmental cost of… more
Date: December 2011
Creator: Caldwell, Amanda
Partner: UNT Libraries
open access

A Characterization Of Jackson Blue Spring, Jackson County, Florida

Description: Jackson Blue is a first magnitude spring in the karst terrane of northeast Florida. Previous studies have identified inorganic fertilizer as the source of high nitrate levels in the spring. Agricultural land use and karst vulnerability make Jackson Blue a good model for conservation concerns. This work offers an aggregation of studies relating to the springshed, providing a valuable tool for planning and conservation efforts in the region. An analysis of nitrate levels and other water quality p… more
Date: December 2011
Creator: Reiser, Cora
Partner: UNT Libraries
open access

Communication System over Gnu Radio and OSSIE

Description: GNU Radio and OSSIE (Open-Source SCA (Software communication architecture) Implementation-Embedded) are two open source software toolkits for SDR (Software Defined Radio) developments, both of them can be supported by USRP (Universal Software Radio Peripheral). In order to compare the performance of these two toolkits, an FM receiver over GNU Radio and OSSIE are tested in my thesis, test results are showed in Chapter 4 and Chapter 5. Results showed that the FM receiver over GNU Radio has better… more
Date: December 2011
Creator: Cheng, Zizhi
Partner: UNT Libraries
open access

Criticism of Beethoven's Pastoral Symphony in London and Boston, 1819-1874: A Forum for Public Discussion of Musical Topics

Description: Critics who discuss Beethoven’s Pastoral Symphony often write about aspects that run counter to their conception of what a symphony should be, such as this symphony’s static nature and its programmatic elements. In nineteenth-century Boston and London, criticism of the Pastoral Symphony reflects the opinions of a wide range of listeners, as critics variably adopted the views of the intellectual elite and general audience members. As a group, these critics acted as intermediaries between various… more
Date: December 2011
Creator: Cooper, Amy Nicole
Partner: UNT Libraries
open access

The Design Of A Benchmark For Geo-stream Management Systems

Description: The recent growth in sensor technology allows easier information gathering in real-time as sensors have grown smaller, more accurate, and less expensive. The resulting data is often in a geo-stream format continuously changing input with a spatial extent. Researchers developing geo-streaming management systems (GSMS) require a benchmark system for evaluation, which is currently lacking. This thesis presents GSMark, a benchmark for evaluating GSMSs. GSMark provides a data generator that creates … more
Date: December 2011
Creator: Shen, Chao
Partner: UNT Libraries
open access

Development Of A Testbed For Multimedia Environmental Monitoring

Description: Multimedia environmental monitoring involves capturing valuable visual and audio information from the field station. This will permit the environmentalists and researchers to analyze the habitat and vegetation of a region with respect to other environmental specifics like temperature, soil moisture, etc. This thesis deals with the development of a test bed for multimedia monitoring by capturing image information and making it available for the public. A USB camera and a Single board computer ar… more
Date: December 2011
Creator: Kandula, Harsha
Partner: UNT Libraries
open access

Development of Indium Oxide Nanowires as Efficient Gas Sensors

Description: Crystalline indium oxide nanowires were synthesized following optimization of growth parameters. Oxygen vacancies were found to impact the optical and electronic properties of the as-grown nanowires. Photoluminescence measurements showed a strong U.V emission peak at 3.18 eV and defect peaks in the visible region at 2.85 eV, 2.66 eV and 2.5 eV. The defect peaks are attributed to neutral and charged states of oxygen vacancies. Post-growth annealing in oxygen environment and passivation with sulp… more
Date: December 2011
Creator: Gali, Pradeep
Partner: UNT Libraries
open access

Development of Silicon Nanowire Field Effect Transistors

Description: An economically reliable technique for the synthesis of silicon nanowire was developed using silicon chloride as source material. The 30-40 micron long nanowires were found to have diameters ranging from 40 – 100 nm. An amorphous oxide shell covered the nanowires, post-growth. Raman spectroscopy confirmed the composition of the shell to be silicon-dioxide. Photoluminescence measurements of the as-grown nanowires showed green emission, attributed to the presence of the oxide shell. Etching of th… more
Date: December 2011
Creator: Nukala, Prathyusha
Partner: UNT Libraries
open access

Diffusion Of Location Based Services And Targeting Us Hispanics: A Case Study

Description: This study reviews factors that identify U.S. Hispanics as being an ideal target market for adopting Location Based Services (LBS). By using the diffusion of innovation theory, an observed pattern of Hispanics’ adoption of technology, advertisements, smartphones and various smartphone value-added services reveals U.S. Hispanics to be more likely to adopt LBS than non-Hispanics. The study also identifies the top U.S. cell phone wireless providers and analyzes their marketing position towards U.S… more
Date: December 2011
Creator: Yepez, Jennifer
Partner: UNT Libraries
open access

Directions Toward a “Happy Place”: Metaphor in Conversational Discourse

Description: This paper aims to show how people use and understand metaphorical language in conversational discourse. Specifically, I examine how metaphorical language has the potential to be either effective or ineffective in its usage, and how they are bound to the contextual environment of the conversation. This particular setting is a conversation between a researcher and a participant involved in a therapeutic program. Metaphorical language is shown to be helpful for understanding difficult subjects; h… more
Date: December 2011
Creator: Edwards, Jonathan Ryan
Partner: UNT Libraries
open access

Dual-band Microwave Components And Their Applications

Description: In general, Dual-Band technology enables microwave components to work at two different frequencies. This thesis introduces novel dual-band microwave components and their applications. Chapter 2 presents a novel compact dual-band balun (converting unbalanced signals to balanced ones). The ratio between two working frequencies is analyzed. A novel compact microstrip crossover (letting two lines to cross each other with very high isolation) and its dual-band application is the subject of chapter 3… more
Date: December 2011
Creator: Shao, Jin
Partner: UNT Libraries
open access

Ecological Analysis of Physical Activity and Health-related Quality of Life in Female College Students.

Description: Health-related quality of life (HRQOL) is a comprehensive construct including physical and psychosocial health functioning. Despite significant health benefits of regular physical activity (PA), over 40% of female college students do not meet recommended PA guidelines to improve their health. This study investigated the influences of individual, social, and physical environmental factors on students’ PA and HRQOL. Participants were 235 female university students who completed validated surveys … more
Date: December 2011
Creator: Dunn, Jacqueline
Partner: UNT Libraries
open access

Effects of Defensiveness on the Reporting of Personality Disorder Symptoms

Description: Personality disorders are not granted the same clinical attention accorded Axis I disorders despite their instrumental role in treatment and outcome. Even when standardized assessments are used, their clinical utility may be limited by an overly favorable self-presentation. The current study focused on defensiveness, the intentional denial of symptomatology, by examining individuals’ ability to minimize their presentation on personality disorder diagnostic measures. Using a within-subjects simu… more
Date: December 2011
Creator: Fiduccia, Chelsea E.
Partner: UNT Libraries
open access

Electoral System Effects On Anti-muslim Sentiments In Western Europe

Description: The purpose of this thesis is to answer the question, why is there a variation in anti-Muslim sentiments across Western Europe? There is existing literature on individual and country-level variable s to explain why prejudice exists, but this research examines the impact of political institutions on anti-Muslim sentiments. Based on new institutionalism theory, electoral systems can shape public attitudes by providing far-right parties a platform to put their concerns on the agenda, and these par… more
Date: December 2011
Creator: Saleemi, Asmara
Partner: UNT Libraries
open access

Electrochemical Quartz Crystal Microbalance Study Of Bismuth Underpotential Deposition On Ruthenium And On Electrochemically Formed Ruthenium Oxide

Description: Kinetics and thermodynamics of bismuth (Bi) underpotential deposition (UPD) on ruthenium (Ru) and on electrochemically formed Ru oxide are studied using electrochemical quartz crystal microbalance technique. The Bi UPD and Bi bulk deposition are observed both on Ru and on electrochemically formed Ru oxide electrodes. The anodic peak potential of Bi UPD shifts slightly to positive potential as the scan rate increases. The peak current ratio (IAnode/ICathode) of Bi UPD and Bi bulk increases as th… more
Date: December 2011
Creator: Lin, Po-Fu
Partner: UNT Libraries
open access

Employment Interventions for Consumers with HIV/AIDS

Description: A systematic review of studies pertaining to employment interventions for consumers with HIV/AIDS was conducted in order to ascertain what programs and services have resulted in employment for people in this population. Research shows that programs specifically designed for individuals with HIV/AIDS have been beneficial for this population in regards to obtaining employment. This study discusses four employment interventions for people with HIV/AIDS including participation rates and employment … more
Date: December 2011
Creator: James, Amanda
Partner: UNT Libraries
open access

Energy Usage While Maintaining Thermal Comfort : A Case Study of a UNT Dormitory

Description: Campus dormitories for the University of North Texas house over 5500 students per year; each one of them requires certain comfortable living conditions while they live there. There is an inherit amount of money required in order to achieve minimal comfort levels; the cost is mostly natural gas for water and room heating and electricity for cooling, lighting and peripherals. The US Department of Energy has developed several programs to aid in performing energy simulations to help those interest… more
Date: December 2011
Creator: Gambrell, Dusten
Partner: UNT Libraries
open access

Etude Comparative Et Intertextuelle Sur Le Thème Des “Fenêtres” Dans Quatre Poèmes De Charles Baudelaire, Stéphane Mallarmé, Marie Krysinska Et Guillaume Apollinaire.

Description: Written in French, this thesis presents a comparative and intertextual study on the theme of « windows » in four poems by Charles Baudelaire, Stéphane Mallarmé, Marie Krysinska and Guillaume Apollinaire. Charles Baudelaire (1821-1867), Stéphane Mallarmé (1842 -1898), Marie Krysinska (1857-1908) and Guillaume Apollinaire (1880-1918) use « windows » as a common theme in their poetry. My study compares this common theme found in four poems: (1) “Les fenêtres” by Charles Baudelaire in Spleen de Pa… more
Date: December 2011
Creator: Opsitch, Yann
Partner: UNT Libraries
open access

Europeanization and the Rise of Extremist Parties

Description: The research question addressed by this study is: what is the relationship between Europeanization and the rise of extremist parties? In particular I examine the impact of Europeanization on the rise of extreme right parties in Europe from 1984 to 2006. Europeanization in this paper is defined as a process whereby the transformation of governance at the European level and European integration as a whole has caused distinctive changes in domestic politics. This process of Europeanization is one … more
Date: December 2011
Creator: Dague, Jennifer Lee
Partner: UNT Libraries
open access

An Exploration of Altruistic Behavior of Substance-Abuse Facilities According to Their Ownership Status

Description: Using the 2009 National Survey of Substance Abuse Treatment Services (N-SSATS), this paper uses logistic regressions to explore the effect of facility ownership on a facility’s show of altruism. Facility’s show of altruism is operationalized as a facility offering free treatment to all its clients, free treatment to some of its clients, or a facility offering a sliding fee scale to its client base in order to absorb some of the cost of treatment based on a potential client's income. Region, re… more
Date: December 2011
Creator: Galanova, Yekaterina (Katherine) Yur'Yevna
Partner: UNT Libraries
open access

Exploration Of Energy And Area Efficient Techniques For Coarse-grained Reconfigurable Fabrics

Description: Coarse-grained fabrics are comprised of multi-bit configurable logic blocks and configurable interconnect. This work is focused on area and energy optimization techniques for coarse-grained reconfigurable fabric architectures. In this work, a variety of design techniques have been explored to improve the utilization of computational resources and increase energy savings. This includes splitting, folding, multi-level vertical interconnect. In addition to this, I have also studied fully connected… more
Date: December 2011
Creator: Yadav, Anil
Partner: UNT Libraries
open access

An Exploration of the Titrating-Delay Match-to-Sample Procedure with Pigeons

Description: The delayed matching‐to‐sample (DMTS) procedure involves the insertion of a delay between the offset of a sample stimulus and the onset of an array of comparison stimuli; one of which is designated as the “correct” match for the sample on each trial. The procedure has served as the base preparation in which the effects of environmental variables on short‐term remembering and is, in many ways, responsible for a refined understanding of the phenomenon. Despite its utility, however, there are a fe… more
Date: December 2011
Creator: Friedel, Jonathan E.
Partner: UNT Libraries
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